Pair of Gen 1 496 Mag HOs. 367/370 fresh water original hours. +\- 180 psi compression across the board. Come complete as you seem them turn key ready. Both engines have been serviced and ready to drop in. - plugs/wires - fresh amsoil/filter - seawater impellers - new heat excharger caps/flushed - K&N flame arrestors - fresh extended life dexcool - fuel filters - exhaust manifold gaskets